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BartSMP [9]
3 years ago
13

Describe what happens to the molecules as water goes from ice to liquid to vapor. Be sure to explain what happens to the tempera

ture during the phase changes.
Chemistry
2 answers:
guapka [62]3 years ago
8 0
They speed up and move farther apart, this is as it heats up. hope this helped :3
stellarik [79]3 years ago
6 0
When water changes form the molecules are the ones most responsible. When water molecules get hot, the molecules expand. Or they spread out, moving quickly. When they cool they become compact. When temperatures reach 32F or 0C water becomes solid because the molecules come close together and stop moving. Because there is no movement you can't run your fingers through the molecules, it's<span> a solid.  </span>
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You measure the mass of a model car to be 230 grams.The actual mass is 218 grams .what is your percent error
LenKa [72]
Your percent is 5.50458716
8 0
3 years ago
34. An electron in the 3d state of the hydrogen atom has a radial part of the wave function of the form A r2 exp(-r/3ao). What i
nikdorinn [45]

Answer: Option (e) is the correct answer.

Explanation:

Formula to calculate radius is as follows.

          p(r) = Ar(r^{2}e^{\frac{-r}{3a_{o}}}

                = Ar^{3}e^{\frac{-r}{3a_{o}}}

     \frac{dp(r)}{dr} = 0

            Ar^{3}e^{\frac{-r}{3a_{o}}}(\frac{-1}{3a_{o}} + Ae^{\frac{-r}{3a_{o}}}(3r^{2}) = 0

                     \frac{Ar^{3}}{3a_{o}}e^{\frac{-r}{3a_{o}}}

                      = 3Ar^{2}e^{\frac{-r}{3a_{o}}}

                       r = 9a_{o}

Thus, we can conclude that most likely radius at which the electron would be found is 9a_{o}.

4 0
3 years ago
If an element has 3 valence electrons, what charge will likely form on its ion? Hint: It will lose those electrons. What happens
guajiro [1.7K]

Answer:

The answer to your question is: letter A

Explanation:

If an atom lose 3 electrons its charge will be positive, it will be +3

6 0
2 years ago
What is the energy of a photon of red light that has a frequency of 4.48 X 10^14Hz?
lana [24]

Answer:

E = 29.7× 10⁻²⁰  j

Explanation:

Given data;

Frequency of light = 4.48 × 10¹⁴ Hz

Energy of photon = ?

Solution:

Formula:

E = h.f

E = energy of photon

h = planck's constant

f = frequency

E = h.f

E = 6.63 × 10⁻³⁴ Kg.m² /s × 4.48 × 10¹⁴ s⁻¹

E = 29.7× 10⁻²⁰ Kg.m²/s²

Kg.m²/s² = j

E = 29.7× 10⁻²⁰  j

3 0
2 years ago
Which of the following is not a correct chemical equation for a double displacement reaction?
sergeinik [125]
Where are the options?
6 0
3 years ago
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